309 CR VAB

Heavy Equipment

309 CR VAB

Net Power

70.3 HP /
52.4 kW

Operating Weight

20731 lb /
9403 kg

Height

17 in /
431 mm

The Cat® 309 CR Variable Angle Boom (VAB) Mini Excavator delivers maximum power and performance in a mini size to help you work in a wide range of applications. The Variable Angle Boom provides the maximum in linkage flexibility in tight applications.

*Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, standard stick, blade and no bucket.

Note (1)

*Minimum Weight is based on steel tracks, no counterweight, operator, full fuel tank, standard stick, blade and no bucket.

Note (2)

**Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, long stick, blade and no bucket.

Blade

Height

17 in /
431 mm

Width - Standard

97.2 in /
2470 mm

Width - Wide

103.9 in /
2640 mm

Air Conditioning System

Air Conditioning

The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.0 kg of refrigerant which has a CO2 equivalent of 1.430 metric tonnes.

Certification - Cab

Roll Over Protective Structure (ROPS)

ISO 12117-2:2008

Tip Over Protective Structure (TOPS)

ISO 12117:1997

Top Guard

ISO 10262:1998 (Level II)

Dimensions - Long Stick

Boom In Reach

126.6 in /
3215 mm

Boom Swing - Left

24 in /
604 mm

Boom Swing - Right

37 in /
935 mm

Cab Height

99 in /
2514 mm

Dig Depth

183.1 in /
4650 mm

Ground Clearance

13.5 in /
343 mm

Maximum Blade Depth

26.9 in /
684 mm

Maximum Blade Height

13.5 in /
342 mm

Maximum Dig Height

276.8 in /
7032 mm

Maximum Dump Clearance

199.4 in /
5065 mm

Maximum Reach

300.7 in /
7637 mm

Maximum Reach - Ground Level

293.8 in /
7462 mm

O/A Shipping Length

262.3 in /
6662 mm

O/A Track Width

97.2 in /
2470 mm

O/A Undercarriage Length

126 in /
3200 mm

Stick Length

92.8 in /
2358 mm

Swing Bearing - Height

28.7 in /
729 mm

Tail Swing with Counterweight

64.8 in /
1645 mm

Tail Swing without Counterweight

57.1 in /
1450 mm

Track Belt/Shoe Width

17.7 in /
450 mm

Transport Height

99 in /
2514 mm

Vertical Wall

134.3 in /
3411 mm

Dimensions - Standard Stick

Boom In Reach

120.4 in /
3058 mm

Boom Swing - Left

24 in /
604 mm

Boom Swing - Right

37 in /
935 mm

Cab Height

99 in /
2514 mm

Dig Depth

162 in /
4115 mm

Ground Clearance

13.5 in /
343 mm

Maximum Blade Depth

26.9 in /
684 mm

Maximum Blade Height

13.5 in /
342 mm

Maximum Dig Height

264.9 in /
6729 mm

Maximum Dump Clearance

187.1 in /
4753 mm

Maximum Reach

281.1 in /
7140 mm

Maximum Reach - Ground Level

273.6 in /
6951 mm

O/A Shipping Length

259 in /
6578 mm

O/A Track Width

97.2 in /
2470 mm

O/A Undercarriage Length

126 in /
3200 mm

Stick Length

71.8 in /
1823 mm

Swing Bearing - Height

28.7 in /
729 mm

Tail Swing with Counterweight

64.8 in /
1645 mm

Tail Swing without Counterweight

57.1 in /
1450 mm

Track Belt/Shoe Width

17.7 in /
450 mm

Transport Height

97.9 in /
2487 mm

Vertical Wall

118 in /
2998 mm

Dimensions - VAB In

Boom Swing Left

24 in /
604 mm

Boom Swing Right

37 in /
935 mm

Boom in Reach

112.3 in /
2853 mm

Cab Height

99 in /
2514 mm

Dig Depth

154.8 in /
3931 mm

Ground Clearance

13.5 in /
343 mm

Maximum Blade Depth

26.9 in /
684 mm

Maximum Blade Height

13.5 in /
342 mm

Maximum Dig Height

216.3 in /
5494 mm

Maximum Dump Clearance

143.4 in /
3643 mm

Maximum Reach

260.3 in /
6612 mm

Maximum Reach at Ground Level

252.1 in /
6403 mm

Overall Shipping Length

227.2 in /
5771 mm

Overall Track Width

97.2 in /
2470 mm

Overall Undercarriage Length

126 in /
3200 mm

Stick Length

71.8 in /
1823 mm

Swing Bearing Height

31.4 in /
798 mm

Tail Swing with Counterweight

64.8 in /
1645 mm

Tail Swing without Counterweight

57.1 in /
1450 mm

Track Belt/Shoe Width

17.7 in /
450 mm

Transport Height

99.6 in /
2530 mm

Vertical Wall

133.6 in /
3394 mm

Dimensions - VAB Out

Boom Swing Left

24 in /
604 mm

Boom Swing Right

37 in /
935 mm

Boom in Reach

117.9 in /
2995 mm

Cab Height

99 in /
2514 mm

Dig Depth

136.5 in /
3468 mm

Ground Clearance

13.5 in /
343 mm

Maximum Blade Depth

26.9 in /
684 mm

Maximum Blade Height

13.5 in /
342 mm

Maximum Dig Height

321.7 in /
8171 mm

Maximum Dump Clearance

251.6 in /
6390 mm

Maximum Reach

311 in /
7900 mm

Maximum Reach at Ground Level

304.4 in /
7732 mm

Overall Shipping Length

281.8 in /
7158 mm

Overall Track Width

97.2 in /
2470 mm

Overall Undercarriage Length

126 in /
3200 mm

Stick Length

71.8 in /
1823 mm

Swing Bearing Height

31.4 in /
798 mm

Tail Swing with Counterweight

64.8 in /
1645 mm

Tail Swing without Counterweight

57.1 in /
1450 mm

Track Belt/Shoe Width

17.7 in /
450 mm

Transport Height

96.5 in /
2452 mm

Vertical Wall

138.7 in /
3524 mm

Hydraulic System

Auxiliary Circuit - Primary (High Flow) - Flow

37 gal/min /
140 l/min

Auxiliary Circuit - Primary (High Flow) - Pressure

4134 psi /
285 bar

Auxiliary Circuit - Secondary - Flow

9 gal/min /
33 l/min

Auxiliary Circuit - Secondary - Pressure

4134 psi /
285 bar

Digging Force - Bucket

13943 lb /
62 kN

Digging Force - Stick - Long

8023 lb /
35.7 kN

Digging Force - Stick - Standard

9500 lb /
42.3 kN

Operating Pressure - Equipment

4134 psi /
285 bar

Operating Pressure - Swing

3626 psi /
250 bar

Operating Pressure - Travel

4134 psi /
285 bar

Pump Flow at 2,400 rpm

62 gal/min /
233 l/min

Type

Load Sensing Hydraulics with Variable Displacement Piston Pump

Service Refill Capacities

Cooling System

2.6 gal (US) /
10 l

Engine Oil

3 gal (US) /
11.2 l

Fuel Tank

39 gal (US) /
147 l

Hydraulic System

28 gal (US) /
107 l

Hydraulic Tank

14 gal (US) /
53 l

Sound

Average Exterior Sound Pressure (ISO 6395:2008)

99 dB(A)

Note

European Union Directive “2000/14/EC”

Operator Sound Pressure (ISO 6396:2008)

72 dB(A)

Specifications

Note

The 309 CR specifications are based on a machine configured with a Long (L) Undercarriage. For specifications representing a 309 CR with a Standard Undercarriage, please refer to the 308 CR information.

Recent Articles

We are all feeling a shortage of trained technicians in today's workforce. According to the Bureau of Labor Statistics, as of 2018 there are about 442,000 (.1 percent of US population) industrial machine technicians in the U.S workforce, less than 3 percent of those techs are women. Sylvia Reyes is making moves to change that, and increase the number of total technicians we have available.
Read more